BROWNIAN DYNAMICS SIMULATION OF FREELY ROTATING BEAD-ROD CHAIN MODEL

方建农; 范西俊

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BROWNIAN DYNAMICS SIMULATION OF FREELY ROTATING BEAD-ROD CHAIN MODEL

更新时间：2025-12-16

- BROWNIAN DYNAMICS SIMULATION OF FREELY ROTATING BEAD-ROD CHAIN MODEL
- CIESC Journal Issue 4, (1997)
- 作者机构：
  
  浙江大学力学系,浙江大学力学系杭州 310027,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： 631
- Online First：25 August 1997，
  
  Published：25 August 1997
- 稿件说明：
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方建农, 范西俊. BROWNIAN DYNAMICS SIMULATION OF FREELY ROTATING BEAD-ROD CHAIN MODEL[J]. CIESC Journal, 1997, (4).
DOI：

方建农, 范西俊. BROWNIAN DYNAMICS SIMULATION OF FREELY ROTATING BEAD-ROD CHAIN MODEL[J]. CIESC Journal, 1997, (4). DOI：

摘要

利用聚合物分子理论

推导了自由旋转珠杆链分子模型在广义坐标下的伊藤型随机微分方程(朗之万方程)

构造了相应的Brown动力学模拟算法

首次研究了该模型在定常剪切流和拉伸流中的动力学行为及其流变性质

并在微机上利用MATHE-MATICA软件实现了流动中高分子微观结构形态演变的动态显示.

Abstract

Using kinetic theory

the Ito stochastic-differential equations for the freely rotating bead-rod chain model is derived in generalized coordinates. A corresponding algorithm is then proposed to simulate the dynamic behavior and rheological properties of this model in steady shear flow and elongated flow. Computer animation of conformational transitions in polymer chains is realized with the help of MATHEMATICA software.

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